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Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method

Publication ,  Journal Article
Chen, SH; Cao, Y; Lan, L; Zhao, M; Shi, ZH; Gong, MC; Chen, YQ
Published in: Chinese Journal of Inorganic Chemistry
January 1, 2013

Two series of CeO2 materials were prepared by two different synthetic routes, i.e. the conventional ammonia precipitation route (CR) and the ammonium carbonate hydrolysis route (HA) using (NH4)2CO3 in the presence of hydrogen peroxide. The formation process and decomposition behavior of the precipitates were investigated by FTIR, Raman, thermogravimetric and differential thermal analysis (TG/DTA) and X-rayphotoelectron spectroscopy (XPS). The results show that the as-prepared precipitate obtained by HA consists of O22- CO32-and OH--species. However, after hydrothermal digestion at 80 °C, the CO32-species is gradually hydrolyzed into OH- species. Although the chemical components of the digested precipitates prepared by these two routes are almost the same, the agglomeration of CeO2 particles is markedly modified. The CeO2 powder produced by HA exhibits higher thermal stability and better reduction property compared to that obtained by CR. After the heat treatment at 900 °C for 3 h, the CeO2 powder from HA route still remains a surface area of 27 m2 ·g-1.

Duke Scholars

Published In

Chinese Journal of Inorganic Chemistry

DOI

ISSN

1001-4861

Publication Date

January 1, 2013

Volume

29

Issue

10

Start / End Page

2231 / 2238

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 0302 Inorganic Chemistry
 

Citation

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Chen, S. H., Cao, Y., Lan, L., Zhao, M., Shi, Z. H., Gong, M. C., & Chen, Y. Q. (2013). Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method. Chinese Journal of Inorganic Chemistry, 29(10), 2231–2238. https://doi.org/10.3969/j.issn.1001-4861.2013.00.219
Chen, S. H., Y. Cao, L. Lan, M. Zhao, Z. H. Shi, M. C. Gong, and Y. Q. Chen. “Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method.” Chinese Journal of Inorganic Chemistry 29, no. 10 (January 1, 2013): 2231–38. https://doi.org/10.3969/j.issn.1001-4861.2013.00.219.
Chen SH, Cao Y, Lan L, Zhao M, Shi ZH, Gong MC, et al. Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method. Chinese Journal of Inorganic Chemistry. 2013 Jan 1;29(10):2231–8.
Chen, S. H., et al. “Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method.” Chinese Journal of Inorganic Chemistry, vol. 29, no. 10, Jan. 2013, pp. 2231–38. Scopus, doi:10.3969/j.issn.1001-4861.2013.00.219.
Chen SH, Cao Y, Lan L, Zhao M, Shi ZH, Gong MC, Chen YQ. Preparation of mesoporous CeO2 with high thermal stability by ammonium carbonate hydrolysis method. Chinese Journal of Inorganic Chemistry. 2013 Jan 1;29(10):2231–2238.

Published In

Chinese Journal of Inorganic Chemistry

DOI

ISSN

1001-4861

Publication Date

January 1, 2013

Volume

29

Issue

10

Start / End Page

2231 / 2238

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 0302 Inorganic Chemistry